package com.jby.seckill.utils;

import org.apache.commons.codec.digest.DigestUtils;

/**
 * MD5工具类
 */
public class MD5Util {
    public static String md5(String src) {
        return DigestUtils.md5Hex(src);
    }

    public static final String salt = "1a2b3c4d";

    public static String inputPassToFromPass(String inputPass) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + inputPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String inputPassToFromPass(String inputPass,String salt) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + inputPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String fromPassToDBPass(String fromPass) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + fromPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String fromPassToDBPass(String fromPass,String salt) {
        String str = "" + salt.charAt(0) + salt.charAt(2) + fromPass + salt.charAt(5) + salt.charAt(4);
        return md5(str);
    }

    public static String inputPassToDBPass(String inputPass) {
        String fromPass = inputPassToFromPass(inputPass);
        String dbPass = fromPassToDBPass(fromPass);
        return dbPass;
    }

    public static String inputPassToDBPass(String inputPass,String salt) {
        String fromPass = inputPassToFromPass(inputPass);
        String dbPass = fromPassToDBPass(fromPass);
        return dbPass;
    }

    public static void main(String[] args) {
        System.out.println(inputPassToFromPass("123456"));//ce21b747de5af71ab5c2e20ff0a60eea
        System.out.println(fromPassToDBPass("d3b1294a61a07da9b49b6e22b2cbd7f9","1a2b3c4d"));
        System.out.println(inputPassToDBPass("123456"));
    }
}
